so in texas we have blown past the rps. we're already there. >> it dictates and demands from the state, passed by the state, 100% of the power, some percentage has to come from renewable sources? >> that's exactly right. that's a huge driver for private investment in the industry. it's also been very important as katie said to have the production tax credit, the investment tax credit for solar. especially in a plummeting gas price environment, we need these incentives in order to keep building the infrastructure. >> solar, i think, is undergoing a sort of remarkable decline in the costs of production, but it doesn't have nearly the share that wind does, right? is that where solar is at right now? >> let me put this in perspective. if you talk about the tax to convert satellite into electricity. the first commercial use was in 1994. at the time it was literally astronomical in costs. not for the space race with the soviets where we needed satellites in space and needed power for the satellites. nasa turned to solar cells as